LM3000 Numbers 0-9 Squared Program

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R0 = Number being squared, 0≤n≤9

R1 = “Counter,” times left to add. (when R1 = 0, pulse the display)

R2 = Partial sums (will display when pulsed)

R3 = Total Sum 

00  MOV  R0 #0			start at zero
01  MOV  R2 #0 


02  MOV  A  R0			Is R0 at ten?
03  MOV  B #10
04  CMP
05  BEQ  00			If yes, set to zero.


06  MOV  R1 R0			Set counter to n
07  MOV  R3 R2			Display total sum
08  MOV  R2 #0			Clear total

09  MOV  A  R1			Is counter = zero?
10  MOV  B  #0
11  CMP
12  BNE  17			If not, skip ahead.


13  MOV  A  R0			If so, n = n+1
14  MOV  B  1
15  ADD  R0
16  BRA  02			Go back, check if n = 10, set R1 = n


17  MOV  A  R0			Add, R2 = n + R2
18  MOV  B  R2
19  ADD  R2

20  MOV  A  R1			Subtract, R1 = R1 – 1
21  MOV  B  #1
22  SUB  R1
23  BRA  09
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